DTC Troubleshooting: C0023-F0, C0044-F0, U0416-68, U0416-F8
DTC C0023-F0: Brake Light Drive Relay Circuit Malfunction
DTC C0044-F0: Master Cylinder Pressure Sensor Failure
DTC U0416-68: Brake Actuator Malfunction
DTC U0416-F8: VSA Modulator-Control Unit Malfunction
NOTE:
Before you troubleshoot, review the general troubleshooting information.
These DTCs are recorded when the millimeter wave radar receives failure information from the VSA modulator-control unit via the F-CAN.
If a DTC is recorded again after it is cleared with the HDS, perform a troubleshooting for the VSA system.
The functions of the integrated driver support system that will be temporarily canceled when this DTC is recorded can be confirmed with the DTC troubleshooting index.

DTC Description
DTC
C0023-F0 Brake Light Drive Relay Circuit Malfunction
  
C0044-F0 Master Cylinder Pressure Sensor Failure
  
U0416-68 Brake Actuator Malfunction
  
U0416-F8 VSA Modulator-Control Unit Malfunction
  

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Turn the vehicle to the OFF (LOCK) mode.

?4.
Turn the vehicle to the ON mode, then wait for at least 6 seconds.

?5.
Check for DTCs with the HDS.
DTC Description
DTC
C0023-F0 Brake Light Drive Relay Circuit Malfunction
  
C0044-F0 Master Cylinder Pressure Sensor Failure
  
U0416-68 Brake Actuator Malfunction
  
U0416-F8 VSA Modulator-Control Unit Malfunction
  

Is DTC C0023-F0, C0044-F0, U0416-68, or U0416-F8 indicated?

     
YES
     
     
     
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.?